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No. 67.769. Patented Aug. 13, 1867;

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CHARLES. KALBFUSS, OF NEW RICHMOND, O H1O.

Letters Patent No. (57,769, dated August 13, 186i,

WARMING APPARATUS I'OB. FIRE-PLACES.

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To WHOM IT MAY concurs:

Be it known that I, CHARLES KALBFUSS, of New Richmond, Clcrmont county,Ohio, have invented a new and useful Warming and Ventilating Apparatus;and I hereby declare the following to be a full, clear, and exactdescription thereof, reference being had to the accompanying drawings,making part of this specification.

My invention relates to thatv class of heating apparatus which islocated in the chimney, immediately over the fire ina grate, for thepurpose of warming air by means of the fire and smoke which ascendwithin the chimney, and my improvement consists in such a constructionof apparatus as will'give out the greatest amount of warm air with theleast consumption of fuel. In the accompanying drawings Figure 1 is atransverse section of a grate provided with my improved warming andventilating a pparatus; and

Figure 2 is a perspective view of the apparatus detached from the grate,a portion of one side-being broken away, so as to exhibit the internalconstruction.

A represents the fire-basket or grate, and placed immediately over thisbasket is a rectangular or other suitablyshaped air-heating chamber, B,which is sufliciently large to extend entirely across the throat of thefire-place in either direction, and this chamber is traversed byacentral flue, G, up which all the productsof combustion ascend into thechimney D; This air-heating chamber receives its supply of air throughan indu'c -f tion pipe, E, which may either draw the air from the roomin which the grate is placed, or it may communicate with the externalatmosphere, and the flow of air through said pipe is regulated by avalve, 0. In order to compel the air to traverse the entire interior ofthechamber B, I provide it with a horizontal diaphragm, F,

which extends almost the entire length of the said chamber, and'as theinlet pipe E conducts the cold air in under said diaphragm, the air isthus caused to circulate throughthe chamber, and to become thoroughlywarmed. This chamber is furnishcd'with a door, G, which opens into theroom at the side of the fire-place,-aud

this door admits of the hot-air chamber being. cleaned at any time whenfound to be necessary. A handle, it, which passes through this chamber,is furnished with a damper, K, for regulating the draught of the fire upthe fine 0. Situated a slight distance above the chamber B is a drum, L,and this 'drum is connected to the said chamber by means of the side orbrauchpipes M M, and, like this chamber, it is also provided ivit-h acentral flue, N, which is coincident with the other fine C. {the branchpipes M M conduct the previously-wernied' air from the chamber B intothe drum L; 'and as this drum has an internal flue, and is alsosurrounded by the heated uses the. which are asceudin within the chimnethe air is a. second time heated and it is then dis-' charged into theroom by the pipe 0. lhe pipe 0 may have another exit pipe, P, attachedto it, for thepurpose of conducting the heated air into an upperapartment, andthis latter pipe may be carried up within the chiin; ney,if desired. It will b'eseen that this apparatus acts to warm andventilate the room in the most effectual way, and with the leastconsumption of fuel, and the provision of the damper K enables the fireto be controlled as readily as, and with all. the advantages peculiar toa stove. The flue N of the drum L may be omitted without impairing theefficiency of the apparatus to any great extent.

I claim herein as new, and of my inveution-- 1. The combination,substantially as described, of the heating-chamber B, internal flue0,.induction pipe E, drum L, branch pipes M M, and exit pipe 0,, thewhole being arranged and operating as herein described and set forth. rp

2. In combination with the elements 13, C, E, L, M M, and O of thepreceding clause, I also claim the diaphragm F and the damper K k, forthe purpose specified.

In testimonyof which iuventionl hereunto set my hand.

CHAS. KALBFUSS.

Witnesses:

G120. H. Kmenr, J AMES H. LAYMAN.

